Hunter Station Bridge Imploded After Replacement Bridge Opens

hunterstationadd1318
Oblique view. Photos taken by Nathan Holth in 2013

bhc newsflyer new

OIL CITY, PA- Between through truss bridges which have an overhead chord and a deck truss, where the trusses are underneath the roadway, we have the half-through truss design. This consists of a truss bridge, whose roadway is wedged right in the middle of the truss itself. This means the truss can be seen both when driving by car on the road or boating underneath. Only a handful of These half-through truss bridges were constructed between 1880 and 1940, of which seven existed, including two with overhead bracings that cover the roadway, resembling a true through truss bridge.

Since October 4th of the year, that number has been reduced to one. The Hunter Station Bridge, a three-span Pratt half-through truss Bridge spanning the Allegheny River at US Highway 62 between Oil City and Lighthouse Island in Forrest County was dropped with explosives last week, two months after ist replacement span was open to traffic. The 1050-foot Long span was built in 1934 by P.I. Cox Construction Company featured a 30° skewed overhead chord with X-laced portal bracings encased in a C-beam form that can be seen as a beam portal upon entering the bridge. The strut bracings are all X-laced and uncovered. The roadway is wedged between the riveted trusses, even though a sidewalk existed on one side.  The structure was listed as eligible for the National Register of Historic Places, but it was not enough for the it to be saved, for years of neglect with rusted trusses and damages to concrete and steel railings led to PennDOT to replace the structure with the new span. Construction started last year and traffic shifted onto the new bridge in July, when it was completed to traffic.

With the Hunter Station Bridge now gone, only six half-through truss bridges exist in the US, 10 worldwide. This includes the Purdon Bridge near Nevada City, California, the last of ist Kind with an overhead chord. The pin-connected Pratt design, built in 1889 by Cotton Brothers Construction in Oakland is listed on the National Register and still in use today. Other half-through trusses in the US without the overhead trusses include the Nemadji Railroad Bridge in Wisconsin, Dearborn Bridge in Montana, Hadley Bow in New York and High Bridge in Indiana. It is unknown whether another half-through truss bridge in South Carolina exists according to information from bridgehunter.com.

 

hunterstationadd1233

Link: http://historicbridges.org/bridges/browser/?bridgebrowser=truss/hunter/

bhc logo newest1

Advertisements

Wolkenburg Suspension Bridge: A Unique Cable-Stay Along the Mulde

wolkenburg2

Wolkenburg (Saxony)/ Limbach-Oberfrohna/ Glauchau- The last of the three bridges profiled here that is debuting along the Zwickauer Mulde is the Wolkenburg Suspension Bridge. Before going further with this bridge, we need to clarify what this bridge looks like as well as its aesthetic value. The current structure, open since May Day this year is actually a cable-stayed suspension bridge, a bridge type where suspenders actually support the roadway from the tower. When looking at them from an American’s point of view, cable-stayed bridges are bland in appearance, ranking them up there with concrete slab/girder bridges that represent a sour taste to the land-/ or even cityscape. This can be best exemplified with two bridges that come to mind: The Fort Steuben and the Russell-Ironton Bridges. Both of them spanned the Ohio River; both of them have the characteristic A-frame tower, whose cables support the roadway; both of them replaced historic bridges that had a lot of characteristic and aesthetic appeal but were neglected by the department of transportation in a successful bid to have them replaced. Both of them have been demolished, leaving nothing but documentation on websites owned by James Baughn and Nathan Holth, respectively. Both bridges are prone to having problems in the short-term involving the cables and the roadway because, like other modern bridge types, there is too much (heavy) traffic using it. We’re even seeing it with a pair of bridges in Germany, which will be mentioned later on.

wolkenburg3

But while these cable-stayed bridges are being looked down upon like the other concrete spans in America, pursued by Donald Trump and Elaine Chao with some statues of Paul Ryan and Mitch McConnell and a new quasi-national flag of the US (sorry, I have to be sarcastic with this analogy), cable-stayed bridges in Europe, from an outsider’s point of view, can be viewed as a treat, especially for pedestrians and cyclists using them while on the bike trail. One in three cities in Germany has at least one of this type. And while there are some standard examples that exist, most of the cable-stayed bridges we find here are designed in such an unusual way, that they are screaming for people to stop by to pay homage; whether it is because of tilted towers, curved or even rounded roadways, ….

wolkenburg4

 

or in the case of this bridge, a single tower that is leaning outwards towards the river bank, whose primary cables- all draped over a pointed tower- are supporting the deck. The deck itself has a pony girder approach span with a Warren pony truss main span that crosses the Zwickauer Mulde.

 

wolkenburg6

The bridge replaced a century-old structure that consisted of a wire suspension bridge, going by the textbook guidelines that were created by another German engineer, John Roebling. Roebling’s concept was strands of thick wire that were spun together to create the main cables that were anchored between the towers and the ground anchors on shore. The best examples of his design were the Cincinnati-Covington Bridge (1869) and the Brooklyn Bridge (1883, though he died during its construction). The original Wolkenburg Bridge featured heavy cables  combined with vertical suspenders that supported the narrow walkway. The walkway itself was fenced with heavy wire but not trussed like one will see in many suspension bridges today, such as the Golden Gate Bridge or the suspension bridges in New York designed by Othmar H. Ammann.

 

Flooding in 2013 caused extensive damage to the bridge’s roadway and cables to a point where officials in Limbach-Oberfrohna, where Wolkenburg is part of the conglomerate, as well as local officials decided to demolish the bridge, including the tower, which was arched and made of concrete. It took more than three years, combined with lots of money and politicking before the conglomerate let the contract to the firm of Iroplan, based in Chemnitz, and its architect, Klaus Lenz, to build a new bridge at the site of the old one.

 

Construction started in 2016 with the leaning tower and foundations. The roadway was assembled offsite, featuring sliding and welding connections, judging by the author’s observations during his visit. The roadway was lifted into place by crane in November that year, and after attaching the cables between the tower and the roadway, the bridge was completed. What was not completed at the time of the visit in March were the roadway leading to the bridge, the dike to keep the water in the river, and painting the bridge. The bridge was still grey and silver.  The cost for constructing the 80 meter long and two meter wide cable-stayed bridge was 1.2 million Euros.

wolkenburg1

 

wolkenburg5

After many delays and headaches, people have their bridge back. At the May Day opening, where many people participated, mayor Jesko Vogel led the opening with a bang, as cannons were fired and a historic theater group from Glauchau were on hand for some entertainment. Refreshments were provided by the fire department. While the suspension bridge will forever be in the memories of many who live in Wolkenburg, this bridge reopens a connection between Eichenwald Forest and the mill area, both are northeast of the historic city center. The bridge will be a new icon  for Wolkenburg, providing a picturesque view from the historic city center and its churches and castle on the hill. And contrary to common belief regarding cable-stayed bridges, the Wolkenburg Suspension Bridge serves as an example of a bridge of this kind that, if designed with a good aesthetic taste, can be used for any form of traffic,

 

even if this bridge is open for pedestrians and fishermen only.  😉

 

bhc-logo-newest1

A Tribute to Eric DeLony

Shaw Bridge at Claverack, New York. Photo courtesy of Jet Lowe of HABS/HAER

A gifted person provides society with a gift to make it better. A person with unusual talents shapes society to benefit all.

 

For Eric DeLony, a person with a passion for historic bridges not only leads efforts to save them but teaches and encourages bridge lovers and historians to love them and follow his lead. My first contact with him came in 2005 when I wrote my first documents for a Master’s class on American History at the University of Jena in Germany. For the next eight years, despite not being able to meet him in person due to time and travel expenses, I kept in contact with him and he provided some great insights to any topic pertaining to historic bridges, preservation and careers available. Eric was a walking encyclopedia and forefather of historic preservation. Graduating from Ohio State University in 1969, he had previously started working with industrial archaeology during his studies before landing his job as Director of the Historic American Builders Society/ Historic American Engineering Record, a job he held for over three decades while having collected vast arrays of experiences that led to the start in the program to document and preserve historic bridges in 1973, known as the Historic Bridge Program. He launched the Historic Bridge Symposium in 1983 as part of the annual Society of Industrial Archaeology Conference, which has been running successfully ever since. And lastly, he taught seminars on historic bridges and preservation. Thanks to his tireless efforts, many states have implemented their historic bridge preservation programs, which includes providing funding and incentive to local groups wanting to preserve historic bridges, marketing historic bridges and looking at techniques towards prolonging the life of historic bridges for traffic use. Indiana, Texas, Ohio, Iowa, New York and Vermont have been the leading examples in such policies which have saved at least half of the pre-1940 bridges that had existed prior to 1970. Cities, like Pittsburgh, Portland, Minneapolis and Chicago have a large swath of historic bridges preserved for use. In the face of progress, that effort is astounding if compared to the preservation policies of other countries, including some in Europe.

As we wind down our 2016 Ammann Awards and with that, the topic on 100 years of the National Park Service and 50 years of the National Register of Historic Places, we feel that Eric DeLony deserves to be honored for over 40 years of work in preserving historic bridges and guiding others like yours truly, Nathan Holth, Todd Wilson, Kitty Henderson, Kaitlin O’shea, Anne Miller, Jet Lowe and Christopher Marston to becoming successful preservationists, historians, teachers and bridgelovers. There is a reason for honoring him for Lifetime Achievement for his work.

But there is more to him than that. What got him interested in historic bridges and how did that play a key role in preservation policies in the US, which served as an example for other countries to follow?  Christopher Marston, who has worked for HABS-HAER since 1989, has known Eric for many years, both on the job as well as privately. He agreed to do a tribute to Eric as a guest writer for the Chronicles in response to a request for people to step forward in contributing to Eric’s legacy. His work includes a few important sections talking about Eric’s  career as a presevrationist and what he left behind for others to follow. Here is the guest column on Eric DeLony, which also includes a source section for you to find and read when you have some free time and are interested in knowing about this topic. Enjoy! 🙂

 

Eric DeLony doing preliminary field measurements on the 1870 pony truss Old Mill Road Bridge, Northampton County, PA, in 1985. The bridge was documented as part of the Pennsylvania Cast- and Wrought-Iron Bridges Recording Project in 1991. Photo courtesy of HABS HAER Collection

 

How you guys met
I started working for the National Park Service’s Historic American Engineering Record in 1989, as an architect on a summer recording team in Homestead, PA, near Pittsburgh. My first project was to document and draw the 12,000 ton press (1893) at the U.S. Steel Homestead Works. I met Chief of HAER Eric DeLony in person the following summer, when I was working on the Duquesne Blast Furnace. The first bridge I documented for HAER was the 1839 Dunlap’s Creek Bridge in Brownsville, PA, the first cast-iron arch in the country, in 1992. After I joined the HAER office in Washington, DC, in October 1994, I worked directly under Eric as a project leader until he retired in 2003. Over my career, I’ve led HAER documentation projects of over one hundred individual historic bridges; parkway and railroad HAER projects included another hundred bridges.

Eric DeLony’s first HAER drawing of a bridge, as part of the Mohawk-Hudson Survey in 1969. This exploded isometric technique was used on several HAER projects to show how structures go together, especially cast- and wrought-iron bridges, Eric’s favorite. Whipple Cast & Wrought-Iron Bowstring Truss Bridge, HAER NY-4, Sheet 4, 1969.

What Eric did at HAER and elsewhere
Eric DeLony was a summer-hire architect on the very first field team of the Historic American Engineering Record, the Mohawk-Hudson Area Survey, in 1969. This ambitious project documented several sites in the Albany-Troy area, and Eric measured and created HAER drawings of the Troy Gasholder, the Whipple Bowstring Truss, and the Delaware & Hudson Canal, Delaware Aqueduct. After hiring Eric as its first full-time employee in 1971, HAER began recording a variety of other bridges as part of state surveys in Virginia, Utah, Pennsylvania, Indiana, West Virginia, and Florida. HAER also photographed several large railroad bridges and viaducts as part of aerial surveys of the Baltimore and Ohio and Erie railroads from 1970-72. Several of these early surveys were done with teams of students working in schools of architecture, and cosponsored by the Smithsonian Institution through the leadership of Robert Vogel.
Working with longtime colleague Prof. Emory Kemp of West Virginia University, Eric started planning the HAER Historic Bridge Program in 1973, which would become the first comprehensive national program to protect historic bridges. Through Eric’s determination, HAER developed partnerships with the National Trust for Historic Preservation (NTHP), the Advisory Council on Historic Preservation, and state historic preservation offices. The first goal of the program was to promote comprehensive historic bridge inventories in each state. When inventories were required by law in 1987, Eric’s initiative became a catalyst in making highway bridges the first class of historic structures to be nationally evaluated.

Freeport Bridge, one of several Wrought Iron Bridge Company structures that was preserved thanks to Eric’s efforts. Spanning the Upper Iowa River, this bowstring arch bridge, the second longest in the US, was relocated to Gunderson Park in Decorah, Iowa, where it now serves as a picnic area. Photo taken by the author in 2007

Eric recalled that when he first proposed the HAER historic bridges program, he initially received an adversarial reaction from the Federal Highway Administration (FHWA) and state departments of transportation (DOTs). However, once DOTs realized that rehabilitation was an economical solution to maintaining bridges over replacement, and inventories revealed state’s wealth of historic bridges, some engineers were persuaded to appreciate their value. Inventories also helped states prioritize which bridges should be saved, and which older bridges could be replaced after documentation. The stipulation in the ISTEA legislation that 3% of funds go to preservation and amenities greatly helped fund the saving and rehabilitation of hundreds of historic bridges in the 1990s and 2000s.

Broadway Avenue Bridge in St. Peter, Minnesota. One of many bridges that has been rehabilitated for further traffic use. It was one of 29 historic bridges that are of interest of MnDOT and MinnHisSoc. Photo taken in 2013

After the preliminary state bridge inventories were completed, HAER partnered with state DOTs to undertake HAER summer documentation projects, collaborating with a combination of national and local experts and student engineers, architects and historians. Negotiating with a variety of partners from FHWA, DOTs, and other historic groups to secure funding, these HAER state bridge recording projects started with Ohio in 1986. David Simmons of the Ohio Historical Society served as a member of the team that completed the Ohio historic bridge inventory, and as an advisor to the 1986 and 1992 HAER Ohio Historic Bridge Recording Projects. He recalled that the HAER team set up offices at the architecture studios at The Ohio State University, and assisted Eric in training the students in how to read a bridge. The team documented over a dozen bridges (both on system and off) with large format photographs and histories, and completed measured drawings on roughly half of the bridges. HAER’s interest in many of these bridges helped save them from being replaced. An example was the Zoarville Station Bridge, which was preserved with support from local private citizens’ groups. From 1987 to 2001, Eric worked with several other states to document their historic bridges and add to the HAER Collection including: New York, Wisconsin, Arkansas, Massachusetts, Oregon, Pennsylvania, Washington, Iowa, Texas, and Illinois.

Zoarville Station Bridge in Ohio, the only Fink through truss bridge of its kind left in the US. This bridge was photographed by Nathan Holth in 2007 as it was undergoing extensive rehabilitation for reuse as a predestrian crossing

In addition to the nation’s highway bridges, the historic roads and bridges in the National Park system were also deteriorating from neglect and overuse. HAER developed a pilot project in the National Capital Region in 1988 to survey the historic and significant transportation-related structures and designed landscapes in various units of the National Park Service. With support from FHWA and NPS, this program expanded in 1989 and continued until 2002 to document national parks across the country. A sample of some of the parks where HAER employed large summer recording teams includes: Yellowstone, Glacier, Yosemite, Mount Rainier, Sequoia, Zion, Grand Canyon, Mesa Verde, Acadia, Great Smoky, Marsh-Billings-Rockefeller national parks; Skyline Drive, George Washington Memorial, Colonial, Rock Creek, Blue Ridge, Baltimore-Washington parkways; Vicksburg, Chickamauga, Gettysburg and Shiloh National Military Parks. HAER also partnered with Connecticut and New York State to record several historic parkways including: Merritt State Parkway, Taconic State Parkway, Bronx River Parkway, and the Henry Hudson Parkway.

Hogback Covered Bridge, one of thousands of covered bridges that have been preserved for use as a pedestrian crossing after a bridge was constructed alongside it. It is one of six bridges that are part of the Bridges of Madison County tour, soon to be expanded to include a couple additional metal truss bridges relocated recently. Photo taken in 2007

Eric DeLony was also vital in getting HAER involved with a third major initiative involving historic bridges and FHWA. Realizing that covered bridges were a beloved but endangered resource, Vermont Senator James Jeffords proposed legislation to identify and rehabilitate them. The National Historic Covered Bridge Preservation (NHCBP) Program was established by FHWA in 1998 through the TEA-21 transportation bill. Through Eric’s determination and foresight, HAER received research and education funding beginning in 2002 to survey and document the nation’s most significant covered bridges, as well as other educational initiatives including engineering reports, a traveling exhibition, national conferences, a national database, and nominating national historic landmarks. With the benefit of continued FHWA support, HAER National Covered Bridges Recording Project Leader Christopher Marston has continued Eric DeLony’s vision and is in the process of finalizing several research projects. This includes the publication, Covered Bridges and the Birth of American Engineering, co-edited with Justine Christianson, and dedicated to Eric DeLony. Rehabilitation Guidelines for Historic Covered Bridges will be published later in 2017.
How he brought the historic bridges to the attention of the public esp. in terms of preservation and designating them on the National Register
Eric DeLony was involved in several organizations related to bridge preservation. Eric was an active member of the Society for Industrial Archeology (SIA) from its early years, and developed the SIA Historic Bridge Symposium beginning in the early 1980s. For these events, Eric would encourage his network of experts to share their research and experience with bridge preservation initiatives. He would typically introduce the symposium with his annual “State of the Bridge” address. These were more or less annual events from 1988 in Wheeling to 2003 in Montreal, the last year Eric attended as Chief of HAER. Eric returned in 2010-11 in Colorado Springs and Seattle with the co-sponsorship of Kitty Henderson and the Historic Bridge Foundation. HBF has continued the tradition biannually, and the 25th SIA Historic Bridge Symposium was held last year in Kansas City, MO.
He was also a committee member and friend of the Transportation Research Board’s Committee on Historic Preservation and Archaeology in Transportation (ADC50) which included several professionals from state departments of transportation, SHPOs, and consultants involved in preservation issues on federally funded transportation projects. Research and best practices on preserving and maintaining historic bridges was always a major focus of the committee. As a subcontractor to Parsons Brinckerhoff, Eric co-authored with Robert Jackson, “A Context for Common Historic Bridge Types” for National Cooperative Highway Research Program (NCPRP Project 25-25, Task 15) in 2005.
Not only was Eric interested in documenting historic bridges. He was also determined to see that as many structures as possible were saved and preserved. He followed through with DOTs and colleges to see that creative means could assure a bridge’s continued use. Some of these projects that Eric championed and encouraged included: the 1869 wrought-iron Henszey’s Bridge in Summerdale, PA; 1828 Blaine S-Bridge in Blaine, Ohio; the Aldrich Change Bridge in Macedon, NY, an 1858 Whipple Truss over the Erie Canal, among others.
Concurrent with the NPS Roads and Bridges projects, there was also a groundswell of interest in preserving historic roads, and related landscapes and structures. This initiative was championed by Paul Daniel Marriott, then at NTHP, and grew into the Preserving the Historic Road conferences, a biennial event that officially started in Los Angeles in 1998, with HAER as an original cosponsor. According to Marriott, “Eric appreciated that roads and bridges were intertwined. He was one of the first people to acknowledge that historic research and advocacy for historic roads. Eric DeLony was instrumental in establishing the historic roads movement.”
His involvement with HBs outside the US
As a Fulbright Scholar, Eric studied at Ironbridge with Neil Cossons in 1971-72. Eric always hired International Council on Monuments and Sites (ICOMOS) foreign exchange scholars for his summer field teams beginning in 1984, which continued for approx. 25 years.
Eric was instrumental in getting HAER to collaborate with industrial archeologists and preservationists in Europe and other countries. He represented the United States at several meetings of the International Committee for the Conservation of the Industrial Heritage (TICCIH). Another issue that Eric was involved with has finally shown dividends: after several decades, the U.S. delegation has finally agreed to nominate the Brooklyn Bridge as a UNESCO World Heritage Site.

Eric DeLony (left) and Dario Gasparini at the Guilford Pratt truss in Howard County, Maryland by Christopher Marston in 2013

What legacy he left behind
After Eric retired and moved to Santa Fe, NM in 2003, he continued to stay involved in historic bridge preservation. He ran a private consulting business for several years, and kept up an email list of his bridge contacts, which he called “the Pontists”. That list has evolved into the Pontists LinkedIn discussion group. He also published several articles on several historic bridge topics between 2000-2008.
In 2013, Eric bequeathed several of his rare books and technical reports to establish the “Eric N. DeLony Engineering and Bridge Collection” at the Linda Hall Library in Kansas City, MO.
Eric DeLony was truly a pioneer in the world of historic bridge documentation, preservation, and advocacy. The 2,000+ bridges in the HAER Collection, and hundreds of examples of preserved historic bridges across the country are all a testimony to Eric’s determination and enthusiasm for saving historic bridges.

 

Sources:
“Biographies of the Experts: Eric DeLony.” Center for Environmental Excellence by AASHTO website, 2008. https://web.archive.org/web/20080905093246/http://environment.transportation.org/center/tech_experts/bios/26677.aspx
Eric DeLony, Landmark American Bridges. New York: American Society of Civil Engineers, 1993.
Eric DeLony, “HAER and the Recording of Technological Heritage: Reflections on 30 Years’ Work,” IA: The Journal of the Society for Industrial Archeology Volume 25, Number 1 (1999): 5-28.
“Eric N. DeLony Engineering and Bridge Collection.” Linda Hall Library website. http://libguides.lindahall.org/c.php?g=218603&p=1444349
Duncan Hay, “Eric DeLony: 2000 General Tools Award Recipient.” Society for Industrial Archeology Newsletter Volume 29, No. 2 (Summer 2000): 5-7. http://www.siahq.org/awards/generaltools/general%20tools%20award%20citations/2000_General_Tools_Award_-_Eric_Delony.pdf

 

 

Christopher Marston’s career at HABS-HAER and the benefits and setbacks towards preserving historic bridges can be seen through an interview with the Bridgehunter’s Chronicles. Click here for details. To him we have our thanks for his help. 🙂

 

Hulton Bridge Brought Down by Explosives

Hulton Bridge Brought Down by Explosives

Oakmont loses historic icon via implosion amid protests.

PITTSBURGH/ OAKMONT- There are demolitions of historic buildings and bridges that are justified because of their derilect state and safety concerns. While options of rebuilding are viable, the removal of safety hazards with no options left are logical.  Then there are demolitions of these historic structures that defy logic and break barriers of resistance of locals and agencies wanting to save them because of their potential reuse.

For the Hulton Bridge, named after Jonathan Hulton, one of the first settlers of Oakmont, the demolition of the 1909 historic bridge not only defied logic, but also challenged Chuck Yeager’s sound barrier record in terms of opposition by locals, historians and preservationists.

The bridge was imploded today, dropping all but one of the five pinned connected through truss spans into the Allegheny River. This happened just three months after the opening of its replacement span to the north. Workers wasted no time removing the decking and setting the bridge up for the planned implosion, ignoring last minute pleas to save the bridge.

The plan to replace and then remove the historic bridge was a quick and systematic process, where despite its unique design and construction history, both the Pennsylvania Department of Transportation and the State Historic Preservation Office agreed to declare this bridge non-historic.

This led to outcries of foul play from locals and preservationists alike, claiming, as Nathan Holth stated in his bridge profile in HistoricBridges.org, the rejection of its national historic status was part of the plan to streamline the process of replacing the bridge.

Photo taken in 2014 by Nathan Holth and Rick McOmber

Had the Hulton Bridge been declared eligible for listing on the National Register of Historic Places, Section 106 of the Historic Preservation Laws would have been enforced, forcing the state to look at options to keep the bridge intact once the new bridge opened. The 1544 foot (471 meter) long bridge featured four 260 foot long Parker trusses and one 508 foot long Pennsylvania petit through truss span with bedstead portal bracings resembling the letter X.

A similar design was found in the Donora-Webster Bridge, before the bridge was brought down in July of last year.  Despite protests, PennDOT proceeded to initiate the project, even ignoring the proposals to save the bridge- and this despite its rehabilitation done in 2000, where bridge parts were fixed and the entire structure was painted lilac.

With the Hulton Bridge gone, only the C.L. Schmitt Bridge at New Kensington and the West Mifflin-Riverton Bridge are the two remaining multiple-span through truss bridges left spanning the Allegheny River outside Pittsburgh. Yet given PennDOT’s track record of systematically destroying historic bridges despite opposition to the plan, these two bridges may be gone soon as questionable reasons will be found to justify the decision to take the structures down.

There are two ways to stop them: Have local governments or a private party take over the structures and work to maintain them, or protest the draconian policies to tear down the bridges in front of the State Capitol Building in Harrisburg. But that can be done if more people are actively involved in the efforts-

and have a will to learn more about the historic bridges and their role in the development of the transportation system in Pennsylvania and the US. Right now, the interest is more for football and Facebook. When they will take interest remains open.

Here are the clips of the demolition of the Hulton Bridge:

 

 

The Oakmont Historical Society, whose members are currently mourning the loss of their historical icon, produced a documentary of the Hulton Bridge, which includes tours across the bridge. Enjoy this 30+ minute documentary below:

bhc new logo jpeg

 

Greenfield Bridge brought down by explosives

Photo taken by Nathan Holth

93-year old historic bridge in dire straits put out of its misery together with a falsework bridge beneath it.

PITTSBURGH-  It was a posterboy of Pennsylvania’s infrastructure, touted as one of the worst in the country, but it was a classic example of a bridge whose life would have extended beyond a century, had the state and Allegheny County each contributed enough money for rehabilitating the structure. Now the Greenfield Bridge, a 1922 open spandrel concrete deck arch bridge has become a piece of history, and an example of wasted tax dollars that could have better been spent maintaining it!

Crews imploded the 142 meter long (466 ft.) bridge, a work of the local bridge builder E.M. Wichert, this morning, dropping it and the falsework bridge onto Interstate 376. The explosion took a few seconds, albeit the scheduled demo was delayed by 20 minutes due to intruders in the vicinity, according to the Pittsburgh Post Gazette. The bridge carried Beechwood Blvd, spanning I-376, located between Oakland and Squirrel Hill Tunnel. A video shows the bridge being brought down below:

The bridge had deteriorated to a point where planning for a new span began in 2010 for a new span. Yet, according to Nathan Holth of HistoricBridges.org, the deterioration could have been hindered had money been spent properly. “Countless historic bridges have been neglected and/or demolished and replaced for no other reason than that the system for funding bridge projects in the United States is severely flawed and encourages agencies to defer maintenance and rehabilitation until the bridge deteriorates to a serious condition, at which point those agencies are rewarded with demolition and full replacement funds from the federal government. This system has destroyed history, wasted tax dollars, and probably reduced safety as well,” he mentioned in his website. He later adds, “The system need considerable reform, so that greater quantities of funding are provided from the federal government to state and local agencies for the purpose of bridge maintenance and rehabilitation, thus reducing the need for costly, destructive, and inconvenient replacement projects. At the same time, state and local agencies should have to pay a larger percentage of the cost for replacing a bridge, which would decrease the incentive for deferring maintenance and letting a bridge deteriorate.” Because of concrete pieces falling off the bridge, a falsework bridge was built over the Interstate to catch the debris at a cost of $700,000, something Holth and other preservationists have considered a waste of money. That bridge was also brought down along with the arch bridge.

The Greenfield Bridge had been listed as one of 13 pre-1940 concrete arch bridges in the greater Pittsburgh area that needed attention as far as preservation and the National Register of Historic Places are concerned. Unfortunately, once the Interstate is cleared of all the debris from the wrecked bridges, a steel arch bridge will be put into place, expected to be open to traffic by the end of next year. According to sources, railings and other features will mimic the bridge lost to history. Yet it will never resemble the bridge that became a victim of a system in dire need of reform to reduce the amount of wasted money and preserve some history, something Pittsburgh has taken pride in with the city’s numerous bridges.

bhc new logo newsflyer

The Wrong Picture

Photo taken by Nathan Holth
Photo taken by Nathan Holth

Over the holiday season, as I was celebrating with family and getting some photo opportunities of some bridges in Iowa and Minnesota, one of my fellow pontists brought this painting up to the attention of the historic bridge community. It was a sketch of low quality showing a tall suspension bridge, trying to go along the lines of the Golden Gate Bridge but it is unknown whether it is the Golden Girl or the Big Mac Bridge (aka Mackinac Bridge) in Michigan because it was too blurry to tell. To an art teacher, the “artist” portraying this bridge would have received a failing grade for its lack of quality. However, both the teacher as well as a historian would have gotten grey hair and wrinkly had they seen that the title of this “pseudo-drawing” been touted as The Brooklyn Bridge!

I think I feel the tremble of the ground as a result of the Roebling family coming out of their graves for that!

While this person had good intentions of making money, and Wal-mart (where the drawing was spotted) was the place to sell the artwork, little did he realize that with the help of the internet and some photos from books and other sources, he would have found out that there is a stark contrast between the Brooklyn, Mackinac and the Golden Gate Bridges. How stark? The photos below speak for themselves…..

Golden Gate Brifdge. Photo taken by Nathan Holth
Golden Gate Brifdge. Photo taken by Nathan Holth
Mackinac Bridge in Michigan. Photo taken by Nathan Holth
Mackinac Bridge in Michigan. Photo taken by Nathan Holth
Transversal view of the Brooklyn Bridge. Photo by Nathan Holth

The problem with this misperception of this drawing is that many people do not know what the bridges look like and will take drawings like this one to mislead them into knowing that it is this bridge, when in all reality the actual appearance is anything but that. Furthermore, both the aforementioned bridges have been seen in books and movies, so the differences between them should be obvious. Yet with our total embrace with electronic games and technology as if we are swimming in a pool of water is causing us to lose sight on our surroundings, let along our basic knowledge of history and other core subjects that they all seem to be placed in the backburner. We become disillusioned to what we see, and the younger the generation, the more likely they will identify with the wrong items and have them stick to a point where it becomes more difficult to unglue.

So in order to avoid this type of misunderstanding and misleading identification, here is a word of advice to give to the next person who attempts to draw or paint a picture of something as iconic as a historic bridge: Get it right the first time!

Look at the photos and films, visualize in your head what it looks like and how it should look on paper, and allow yourself an ample amount of time to do the artwork correctly. And don’t worry about the issues of copyright laws. If you do the artwork differently than the one before that, yours will turn out just as well, if not better.

As Gaudenz Assenza, former professor of political science at the Friedrich Schiller University in Jena, Germany and now professor at the Catholic University of Rozemborok in Slovakia once quoted: Quality trumps quantity in all aspects of life.  While this may refer to aspects on the level of academia, it also applies to all aspects in life, especially when it comes to something like artwork. Think about this before putting the lead to the leaf, no matter how you do it.

bhc new logo jpeg

The Wrong Picture

Photo taken by Nathan Holth
Photo taken by Nathan Holth

Over the holiday season, as I was celebrating with family and getting some photo opportunities of some bridges in Iowa and Minnesota, one of my fellow pontists brought this painting up to the attention of the historic bridge community. It was a sketch of low quality showing a tall suspension bridge, trying to go along the lines of the Golden Gate Bridge but it is unknown whether it is the Golden Girl or the Big Mac Bridge (aka Mackinac Bridge) in Michigan because it was too blurry to tell. To an art teacher, the “artist” portraying this bridge would have received a failing grade for its lack of quality. However, both the teacher as well as a historian would have gotten grey hair and wrinkly had they seen that the title of this “pseudo-drawing” been touted as The Brooklyn Bridge!

I think I feel the tremble of the ground as a result of the Roebling family coming out of their graves for that!

While this person had good intentions of making money, and Wal-mart (where the drawing was spotted) was the place to sell the artwork, little did he realize that with the help of the internet and some photos from books and other sources, he would have found out that there is a stark contrast between the Brooklyn, Mackinac and the Golden Gate Bridges. How stark? The photos below speak for themselves…..

Golden Gate Brifdge. Photo taken by Nathan Holth
Golden Gate Brifdge. Photo taken by Nathan Holth
Mackinac Bridge in Michigan. Photo taken by Nathan Holth
Mackinac Bridge in Michigan. Photo taken by Nathan Holth

 

Transversal view of the Brooklyn Bridge. Photo by Nathan Holth

The problem with this misperception of this drawing is that many people do not know what the bridges look like and will take drawings like this one to mislead them into knowing that it is this bridge, when in all reality the actual appearance is anything but that. Furthermore, both the aforementioned bridges have been seen in books and movies, so the differences between them should be obvious. Yet with our total embrace with electronic games and technology as if we are swimming in a pool of water is causing us to lose sight on our surroundings, let along our basic knowledge of history and other core subjects that they all seem to be placed in the backburner. We become disillusioned to what we see, and the younger the generation, the more likely they will identify with the wrong items and have them stick to a point where it becomes more difficult to unglue.

So in order to avoid this type of misunderstanding and misleading identification, here is a word of advice to give to the next person who attempts to draw or paint a picture of something as iconic as a historic bridge: Get it right the first time!

Look at the photos and films, visualize in your head what it looks like and how it should look on paper, and allow yourself an ample amount of time to do the artwork correctly. And don’t worry about the issues of copyright laws. If you do the artwork differently than the one before that, yours will turn out just as well, if not better.

As Gaudenz Assenza, former professor of political science at the Friedrich Schiller University in Jena, Germany and now professor at the Catholic University of Rozemborok in Slovakia once quoted: Quality trumps quantity in all aspects of life.  While this may refer to aspects on the level of academia, it also applies to all aspects in life, especially when it comes to something like artwork. Think about this before putting the lead to the leaf, no matter how you do it.

bhc new logo jpeg